Washing-machine with automatic weighing and reinforced piston rod

The utility model relates to a washing-machine with automatic weighing and reinforced piston rod, consisting of a casing, an outer cylinder, two elastic supporting vibration dampers, an inner drum, an electric machine transmission device, etc., wherein one elastic supporting vibration damper is an air-damped type with a displacement sensor, and consists of a cylinder block with a connecting ring, a coil frame, a coil, a coil interface fixed to cylinder block, a ferromagnetic piston rod with a connecting ring and a bore and a sealing ring. The displacement sensor is connected with the microprocessor by the weighing module which consists of the circuits and the interfaces of rectifying, low pass filtering, high gain magnification, time series generating, square wave, etc. The displacement sensor and the air damping shock absorber are unified, and the clothing amount and the water inflow can be observed and controlled. The utility model has simple structure, low cost and higher accuracy, and is extensively used at barrel washing machine.